Will a Mature Banty Trio Live Will with Baby Cochin Banty Trio????

I've ordered my bantam Columbian Cochin trio and am ready to start my backyard flock (half acre) I'm doing a movable hutch and also have a large fenced in flower garden (picket fence) for some play time.

I came across a line of bantam Black Rose Combs that are descended from my Grandfathers flock and couldn't resist getting a trio of them as well